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3D-printed GelMA/CaSiO

Jupei Zhang1,2,3, Zhen Zeng2,3,4, Yanxin Chen2,3

  • 1School of Mechanical Engineering, Chengdu University, Chengdu 610106, China.

Regenerative Biomaterials
|June 5, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces 3D-printed GelMA/CS composite scaffolds for breast adipose tissue regeneration. These scaffolds promote vascularized tissue restoration, offering a promising solution for patients undergoing mastectomies.

Keywords:
3D-printingadipogenesisangiogenesisbioceramiccomposite scaffold

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Increasing mastectomies necessitate improved adipose tissue restoration techniques.
  • Current strategies lack personalized customization and timely vascularization for effective adipose regeneration.
  • Patient expectations for cosmetic and psychosocial outcomes drive demand for advanced solutions.

Purpose of the Study:

  • To develop and evaluate a novel composite hydrogel scaffold for breast adipose tissue regeneration.
  • To assess the potential of 3D-printed gelatin methacrylate anhydride (GelMA) and calcium silicate (CS) scaffolds.
  • To investigate the scaffold's ability to support cell growth and promote vascularization.

Main Methods:

  • Fabrication of a composite hydrogel scaffold using 3D printing technology with GelMA and CS.
  • In vitro assessment of scaffold effects on 3T3-L1 preadipocytes and human umbilical vein endothelial cells.
  • In vivo evaluation of the scaffold's capacity for vascularized adipose tissue restoration in nude mice.

Main Results:

  • The 3D-printed GelMA/CS scaffolds exhibited customizable architectures.
  • Scaffolds significantly stimulated cell adhesion, proliferation, migration, and differentiation in vitro.
  • In vivo studies demonstrated promotion of vascularized adipose tissue restoration.

Conclusions:

  • 3D-printed GelMA/CS composite scaffolds show potential for adipose tissue engineering.
  • The scaffolds effectively support cell behavior and promote vascularization.
  • This technology may offer a viable option for breast adipose tissue reconstruction.